<input type=checkbox name=mm value=a><br>
<input type=checkbox name=mm value=b><br>
<input type=checkbox name=mm value=c><br>
<input type=checkbox name=mm value=d><br>
<input type=checkbox name=mm value=e><br><br><br>
<input type=checkbox onclick="cc(this)">全选与不全选的切换<script language=Javascript>
function cc(e)
{
var a = document.getElementsByName("mm");
for (var i=0; i<a.length; i++) a[i].checked = e.checked;
}
</script>
<input type=checkbox name=mm value=b><br>
<input type=checkbox name=mm value=c><br>
<input type=checkbox name=mm value=d><br>
<input type=checkbox name=mm value=e><br><br><br>
<input type=checkbox onclick="cc(this)">全选与不全选的切换<script language=Javascript>
function cc(e)
{
var a = document.getElementsByName("mm");
for (var i=0; i<a.length; i++) a[i].checked = e.checked;
}
</script>
<select name="name" multiple>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select><input type="checkbox" name ="all" onclick="函数()">
单击复选框,全选或不选select
这个函数如何写?
<select name="list" multiple>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
<input type=checkbox onclick="chAll(this)">全选?
</form><script language="JavaScript"><!--
function chAll(m)
{
var e = document.form1.list;
for (var i=0; i<e.options.length; i++)
e.options[i].selected = m.checked;
}
//--></script>